<!DOCTYPE html>
<html>
<head>
  <title>Page with partially hidden element</title>
</head>
<body>
  <div style="width:200px; height: 200px; overflow: auto;">
    <div style="height: 175px; width: 240px;">Placeholder</div>
    <div>
      <button type="button" style="height: 40px; box-sizing: border-box" id="btn" onclick="window.location='target_page.html'">Click me!</button>
    </div>
  </div>
</body>
</html>
